public async Task ReadAsync_ReadContentWithLargeBuffer_ParseMessageAndTrailers()
{
// Arrange
var data = new byte[] { 0, 0, 0, 0, 1, 99, 128, 0, 0, 0, 0 };
var ms = new MemoryStream(data);
var responseStream = new GrpcWebResponseStream(ms, new TestHttpHeaders());
// Act 1
var contentHeaderData = new byte[1024];
var read1 = await responseStream.ReadAsync(contentHeaderData);
// Assert 1
Assert.AreEqual(5, read1);
Assert.AreEqual(0, contentHeaderData[0]);
Assert.AreEqual(0, contentHeaderData[1]);
Assert.AreEqual(0, contentHeaderData[2]);
Assert.AreEqual(0, contentHeaderData[3]);
Assert.AreEqual(1, contentHeaderData[4]);
// Act 2
var read2 = await responseStream.ReadAsync(contentHeaderData);
// Assert 2
Assert.AreEqual(1, read2);
// Act 2
var read3 = await responseStream.ReadAsync(contentHeaderData);
// Assert 2
Assert.AreEqual(0, read3);
}
public async Task ReadAsync_EmptyMessage_ParseMessageAndTrailers()
{
// Arrange
var data = Convert.FromBase64String("AAAAAACAAAAAEA0KZ3JwYy1zdGF0dXM6IDA=");
var trailingHeaders = new TestHttpHeaders();
var ms = new MemoryStream(data);
var responseStream = new GrpcWebResponseStream(ms, trailingHeaders);
// Act 1
var contentHeaderData = new byte[5];
var read1 = await responseStream.ReadAsync(contentHeaderData);
// Assert 1
Assert.AreEqual(5, read1);
Assert.AreEqual(0, contentHeaderData[0]);
Assert.AreEqual(0, contentHeaderData[1]);
Assert.AreEqual(0, contentHeaderData[2]);
Assert.AreEqual(0, contentHeaderData[3]);
Assert.AreEqual(0, contentHeaderData[4]);
// Act 2
var read2 = await responseStream.ReadAsync(contentHeaderData);
// Assert 2
Assert.AreEqual(0, read2);
Assert.AreEqual(1, trailingHeaders.Count());
Assert.AreEqual("0", trailingHeaders.GetValues(GrpcProtocolConstants.StatusTrailer).Single());
}
public async Task ReadAsync_EmptyMessageAndTrailers_ParseMessageAndTrailers()
{
// Arrange
var data = new byte[] { 0, 0, 0, 0, 0, 128, 0, 0, 0, 0 };
var trailingHeaders = new TestHttpHeaders();
var ms = new MemoryStream(data);
var responseStream = new GrpcWebResponseStream(ms, trailingHeaders);
// Act 1
var contentHeaderData = new byte[5];
var read1 = await responseStream.ReadAsync(contentHeaderData);
// Assert 1
Assert.AreEqual(5, read1);
Assert.AreEqual(0, contentHeaderData[0]);
Assert.AreEqual(0, contentHeaderData[1]);
Assert.AreEqual(0, contentHeaderData[2]);
Assert.AreEqual(0, contentHeaderData[3]);
Assert.AreEqual(0, contentHeaderData[4]);
// Act 2
var read2 = await responseStream.ReadAsync(contentHeaderData);
// Assert 2
Assert.AreEqual(0, read2);
Assert.AreEqual(0, trailingHeaders.Count());
}
public async Task ReadAsync_HasContentAfterTrailers_Errors()
{
// Arrange
var data = new byte[] { 0, 0, 0, 0, 0, 128, 0, 0, 0, 0, 1 };
var ms = new MemoryStream(data);
var responseStream = new GrpcWebResponseStream(ms, new TestHttpHeaders());
// Act 1
var contentHeaderData = new byte[5];
var read1 = await responseStream.ReadAsync(contentHeaderData);
// Assert 1
Assert.AreEqual(5, read1);
Assert.AreEqual(0, contentHeaderData[0]);
Assert.AreEqual(0, contentHeaderData[1]);
Assert.AreEqual(0, contentHeaderData[2]);
Assert.AreEqual(0, contentHeaderData[3]);
Assert.AreEqual(0, contentHeaderData[4]);
// Act 2
var ex = await ExceptionAssert.ThrowsAsync <InvalidOperationException>(() => responseStream.ReadAsync(contentHeaderData).AsTask());
// Assert 2
Assert.AreEqual("Unexpected data after trailers.", ex.Message);
}